Electrochemical device such as an electrically controlled system with variable optical and/or energy properties
AssigneeSaint-Gobain Glass France
InventorsClaude Morin, Fabien Beteille, Jean-Christophe Giron
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Abstract
An electrochemical device including at least one carrier substrate, and a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, the higher-conductivity material having a surface resistance which is lower than a surface resistance of the electrically conducting layer.
Claims32
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said higher-conductivity material is incorporated in said electrically conducting layer.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said network comprises a plurality of conducting strips obtained by screen printing using a paste-like suspension of a silver-type metal and a low-melting-point frit in an organic binder.
An electrochemical device having at least one carrier substrate, and a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s) and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer, the device obtained by a process comprising:
- screen-printing said network onto a glass-type carrier substrate to obtain a screen-printed network;
- covering said screen-printed network with said at least one electrically conducting layer in order to form said multicomponent electrode;
- or
- laying down said network on said electrically conducting layer covering said carrier substrate.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said network comprises a plurality of conducting wires in the form of essentially metallic wires surface-laid on a sheet comprising a thermoplastic polymer.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said network comprises a fabric, a net or a metallic nonwoven material and is a network surface-laid on a sheet comprising a thermoplastic polymer.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and n multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said network is obtained by etching or perforating a metallic layer or a metallic sheet.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said multicomponent electrode comprises said at least one electrically conducting layer and at least one layer comprising said higher-conductivity material in electrical contact;
- wherein at least one of said at least one electrically conducting layer and said at least one layer comprising said higher-conductivity material are optionally in contact with at least one layer comprising a dielectric material.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, as least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said at least one layer comprising a dielectric material has an optical a function of anchoring said at least on layer comprising said higher-conductivity material to said carrier substrate or a function as a barrier to a migration of alkaline species coming from said carrier substrate which is glass.
An electrochemical device comprising:
- at least one carrier substrate;
- and
- a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemical active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer,
- wherein said multicomponent electrode comprises a sequence ITO/Ag/ITO or Ag/ITO with optional interposition of at least one thin layer of partially oxidized metal at an Ag/ITO interface.
An electrochromic system, with at least one carrier substrate and a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer, comprising at least, in succession.
- a first electrically conducting layer,
- an electrochemically active layer liable to reversible insertion of ions of anodic-coloring or, respectively, cathodic-coloring electrochromic material type,
- a layer of electrolyte,
- a second electrochemically active layer to reversible insertion of ions of anodic-coloring or, respectively, anodic-coloring electrochromic material type, and
- a second electrically conducting layer,
- wherein at least one of said first and said second electrically conducting layer comprises said electrically conducting layer comprising metal oxide(s);
- and
- wherein at least one of said first and said second electrically conducting layer is part of said multicomponent electrode.
A viologenic system comprising at least one carrier substrate and a stack of functional layers comprising at least one electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer, comprising at least, in succession,
- a first electrically conducting layers,
- a film having viologenic properties in the form of a polymer, of a gel or of a suspension in a liquid medium, and
- a second electrically conducting layer;
- wherein at least one of said first and second electrically conducting layer comprises said electrically conducting layer comprising metal oxide(s);
- and
- wherein at least one of said first and said second electrically conducting layer is part of said multicomponent electrode.
An electrochemical energy storage device, comprising an electrochemical device including at least one carrier substrate and a stack of functional layers comprising at least on electrically conducting layer comprising metal oxide(s), and a multicomponent electrode including at least one electrochemically active layer, at least one higher-conductivity material and at least one network of one of conducting wires and conducting strips, said higher-conductivity material having a surface resistance which is lower than a surface resistance of said electrically conducting layer.
Dependencies are inferred from the claim text.